LE9641PQCT [Microchip]

The miSLIC™ Line Circuits together with a VoIP processor or SoC, provides an economical turn-key solution for derived voice applications. The versatile Le9641 miSLIC can be controlled via a PCM/SPI or ZSI interface. The Le9641 miSLIC 1 FXS tracking device is a drop-in, pin compatible, device to the miSLIC 2 FXS Le9642 device when using the ZSI interface. The Le9641 uses energy efficient power supply topologies for reduced BOM cost. The Le9641 can be configured to operate a flyback full tracking supply or an inverting buck-boost fixed tracking supply. Ringing and system power management are supported to limit the peak power requirements of the telephone line FXS port. The Le9641 features wideband clarity and complete BORSCHT functionality. Manufacturing test and subscriber line testing are standard features. All AC, DC, and power parameters are programmable making the miSLIC device suitable for any application requiring SLIC functionality.

Single channel population option for Le9642 two channel, 105 V maximum battery designs

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VoicePath SDK and VP-API-II software available to implement FXS functions

VeriVoice Professional Test Suite Software
• Comprehensive subscriber loop testing, including Telcordia GR-909-CORE / TIA-1063 diagnostic testing
• Industry leading advanced test software

VeriVoice Manufacturing Test (VVMT) Package
• Facilitates factory testing and calibration of assembled boards

Pin selectable PCM/SPI or ZSI Interfaces
• Single port 4-wire ZSI control compatible with numerous VoIP processors and SoC solutions
• Less expensive isolation than multi-port control
• Simplifies board routing

48-pin 7x7 mm QFN package

Low cost, energy efficient, switching regulator architectures
• Up to 65 Vrms open circuit ringing with 5 REN load

Low cost, 2-Layer PCB reference designs

Complete wideband BORSCHT functionality

Worldwide programmability

Narrowband or wideband operation